地理

The traditional management information system is unlinked with geographic information and doesn't meet the needs of production and management that has a close relation with geographic information so that some problems appear in so many aspects.

传统的管理信息系统与地理信息脱离联系，不能满足与地理信息有密切关系的生产管理的需要，导致诸多方面存在问题。地理信息系统是解决传统信息管理系统面临问题的全新技术体系。

ABSTRACT: The UAV navigation system's performance is improved through embedding the geography information model that can process the vector map data in the system by using MapX, In this paper, how to navigate and plan the UAV flight course in the vector map is investigated. The basic control and operation for vector map in the geography information system is introduced, and the flight course is designed and modified in the map. In addition, 2D vector map can't orient UAV in 3D space, so the altitude model is added in the UAV navigation system to realize 3D orientation by integrating 2D vector map with altitude plot. The simulation results in the UAV simulation system indicate that the navigation system can monitor and control UAV efficiently and intuitionally.

使用MapX在无人机导航系统中添加能够处理矢量地图数据的地理信息模块，可以显著地提升系统的性能；文章对如何在矢量地图下进行无人机导航与任务规划进行了研究，完成对地理信息系统中矢量地图的基本控制和操作，并在地理信息图上进行航线的设定与修改；另外，针对二维矢量地图无法对无人机进行三维空间定位的问题，文章通过在无人机导航系统中添加高度位置显示模块，用二维平面地图与高度图相结合的方式来实现对无人机位置的三维定位；通过在无人机仿真实验系统中的使用，证明了该系统能高效、直观地对无人机飞行进行监视与控制。

The 54 accessions were classified into five major groups:Ⅰ,Ⅱ,Ⅲ,Ⅳ and Ⅴ by cluster analysis using UPGMA, which showed significant relationship with the origin regions of accessions. Genetic differentiation between and within eight eco-geographical groups of C.dactylon was estimated by Shannon's diversity index, which showed that 63.81% genetic variance existed within group, and 36.19 % genetic variance was among groups, indicating rather large genetic distances among those germplasm, and there was a correlation between genetic differentiation and eco-geographical habits among the groups.

聚类分析结果表明，52份材料可聚为5类；基于Shannon多样性指数估算了8个狗牙根生态地理类群内和类群间的遗传分化，类群内的遗传变异占总变异的63.81%，类群间的遗传变异占总变异的36.19%，表明这些抗源材料遗传差异较大，各生态地理类群间的遗传分化与其所处的生态地理环境具有一定的相关性。

In geography information system, the realistic world was expressed as a series of geography factors and geography phenomenon.

在地理信息系统中，现实世界被表达成一系列的地理要素和地理现象。

To be reflected in palinspastic reconstruction, orogen-palaeogeography suggests a combination of an autochthonous reconstruction and a non-autochthonous one, with stress on the latter.

体现在构造古地理重建中，造山带古地理学倡导原地的古地理重建与非原地的古地理重建相结合且以后者为主。

The spatial analysis is an important component of GIS and distinguishes GIS from the general cartographic system and management information system . The spatial analysis performance is an important performance of GIS .

空间分析是地理信息系统的一个极其重要的组成部分，是地理信息系统区别于一般的制图系统和信息管理系统的根本所在，其性能是地理信息系统的性能的重要标志。

We extracted data about environmental factors of 90 Chinese Chiroptera species at known distribution points by using GIS,and conducted PCA and stepwise regression analyses to evaluate impacts of these environmental factors on geographical distribution and species density of Chinese Chiroptera.

利用地理信息系统提取了中国翼手目90个物种已知地理分布点的环境因子数据，并利用主成分分析和逐步回归分析研究了这些环境因子对中国翼手目动物地理分布和种数密度分布的影响程度。

UPGMA cluster analysis based on Nei's unbiased measures of genetic identity was assayed for five geographical groups of Elymus nutans, indicating that there was a significantly positive correlation between genetic differentiation and geographical habits among the five groups.

对各地理类群基于Nei氏无偏估计的遗传一致度的聚类分析表明，各地理类群间的遗传分化与其所处的地理生态环境具有较高的相关性。

Using the equal-area grids of 6 470 km2as geographical units,the distributional patterns of glires in the humid and semi-humid and semi-humid region of China were studied.

系统收集并整理了我国湿润半湿润地区啮类动物的地理分布资料，基于GIS技术，通过生境分析，确定了每个物种的分布范围，采用6 470 km2的等面积栅格作为地理分布单元，系统研究我国湿润半湿润地区啮类动物地理分布规律。

Available geographical data of glireswere collected to build their digital distributionmap in the humid regionof China based on habitat analysis supported by GIS. Using the equal-area grids of 6 470 km2as geographical units,the distributional patterns of glires in the humid and semi-humid and semi-humid region of China were studied.

系统收集并整理了我国湿润半湿润地区啮类动物的地理分布资料，基于GIS技术，通过生境分析，确定了每个物种的分布范围，采用6 470 km2的等面积栅格作为地理分布单元，系统研究我国湿润半湿润地区啮类动物地理分布规律。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。